gistfile1.php

<?php
/**
 * @author Gajus Kuizinas <g.kuizinas@anuary.com>
 * @version 1.7.2 (2013 07 28)
 * @todo Consider adding layout attribute [label][input][name][/label][comment]
 */
function input ($name, $label = null, array $input_options = null, array $row_options = []) {
        if (!isset($row_options['order'])) {
                $row_options['order'] = 'label-input';
        }
        
        if (empty($input_options['type'])) {
                $input_options['type'] = isset($input_options['options']) ? 'select' : 'text';
        }
        
        // Input generated using \ay\input() is sent through $_POST['ay'] array.
        
        $name = strpos($name, '[') === false ? 'ay[' . $name . ']' : 'ay[' . strstr($name, '[', true) . ']' . strstr($name, '[');
        $original_name_path = explode('][', mb_substr($name, 3, -1));

        $input_options['name'] = $name;
        
        if ($input_options['type'] != 'password') {
                $original_name_path = array_filter($original_name_path); // ay[name][]
        
                $find_value = function ($source) use ($original_name_path) {
                        foreach ($original_name_path as $key) {
                                if (!is_array($source) || !array_key_exists($key, $source)) {
                                        return false;
                                }
                                
                                $source = $source[$key];
                        }
                        
                        return $source;
                };
                
                $value = false;
                
                if (isset($_SESSION['ay']['flash']['input'])) {
                        $value = $find_value($_SESSION['ay']['flash']['input']);
                }
                
                if ($value === false) {
                        if (isset($input_options['value'])) {
                                $value = $input_options['value'];
                        } else if (isset($GLOBALS['ay']['input'])) {
                                $value = $find_value($GLOBALS['ay']['input']);
                        } else if (isset($_GET['ay'])) {
                                $value = $find_value($_GET['ay']);
                        }
                }
        }
        
        $input_attr_str = '';
        
        if ($input_options['type'] === 'text' && !isset($input_options['maxlength'])) {
                $input_options['maxlength'] = 50;
        }
        
        foreach ($input_options as $k => $v) {
                if ($k === 'options') {
                        continue;
                }
        
                $input_attr_str        .= ' ' . $k . '="' . $v . '"';                        
        }
        
        $str = [
                'append' => '',
                'class' => 'ay-input-' . implode('-', $original_name_path) . '-input ay-input-order-' . $row_options['order']
        ];
        
        // generate input string
        switch ($input_options['type']) {
                case 'select':
                        if (!array_key_exists('options', $input_options)) {
                                throw new \ay\flow\Helper_Exception('Select input is missing options array.');
                        }
                        
                        $option_str        = '';
                        
                        foreach ($input_options['options'] as $v => $l) {
                                $selected = '';
                                
                                if ($value && (is_array($value) && in_array($v, $value) || $value == $v)) {
                                        $selected = ' selected="selected"';
                                }
                        
                                $option_str        .= '<option value="' . $v . '"' . $selected . '>' . $l . '</option>';
                        }
                
                        $str['input'] = '<select ' . $input_attr_str . '>' . $option_str . '</select>';
                
                        break;
                        
                case 'checkbox':
                        if (!array_key_exists('value', $input_options)) {
                                $input_options['value'] = 1;
                        } else {
                                $input_options['value'] = $input_options['value'];
                        }                        
                
                        $str['input'] = '<input type="checkbox" value="' . $input_options['value'] . '"' . $input_attr_str . '' . ($input_options['value'] == $value ? ' checked="checked"' : '') . ' />';
                        break;
                
                case 'radio':
                        if (!array_key_exists('value', $input_options)) {
                                throw new \ay\flow\Helper_Exception('Radio input is missing value parameter.');
                        }
                        
                        $input_options['value'] = (int) $input_options['value'];
                        
                        $str['input'] = '<input type="radio" value="' . $input_options['value'] . '"' . $input_attr_str . '' . ($input_options['value'] == $value ? ' checked="checked"' : '') . ' />';

                        break;
                
                case 'textarea':
                        $str['input'] = '<textarea' . $input_attr_str . '>' . filter_var($value, FILTER_SANITIZE_SPECIAL_CHARS) . '</textarea>';
                        break;
                
                case 'password':
                        $str['input'] = '<input type="password" ' . $input_attr_str . ' />';
                        break;
                
                default:
                        $str['input'] = '<input type="' . $input_options['type'] . '" value="' . filter_var($value, FILTER_SANITIZE_SPECIAL_CHARS) . '"' . $input_attr_str . ' />';
                        break;
        }
        
        if ($label === null) {
                return $str['input'];
        }
        
        if (!empty($row_options['comment'])) {
                $str['append'] .= '<div class="ay-input-comment">' . $row_options['comment'] . '</div>';
        }
        
        if (!empty($row_options['class'])) {
                $str['class'] .= ' ' . $row_options['class'];
        }
        
        if ($label === null) {
                $str['body'] = $str['input'];
        } else {
                $input_label = $row_options['order'] === 'input-label' ? $str['input'] . '<span class="ay-input-label">' . $label . '</span>' : '<span class="ay-input-label">' . $label . '</span>' . $str['input'];
                
        
                $str['body'] = '<label class="ay-input-row ' . $str['class']  . ' ay-input-' . $input_options['type'] . '">' . $input_label . '</label>';
        }                        
        
        return $str['body'] . ' ' . $str['append'];
}